Fireplaces are places where fires are kept. They can be hearths where food is cooked or be used primarily for warmth and comfort. Fireplaces in fictional worlds often are secret entrances to hidden rooms or lairs. They connect to chimneys and to the rooftops and so may be a way for people, beasts, and other things to enter a building. Magical fireplaces may act as portals, scrying devices, or a means to summon someone (or something) or communicate with them.